Amir Safiey

Amir Safiey
Auburn University | AU · Department of Civil Engineering

Doctor of Philosophy

About

24
Publications
3,645
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109
Citations
Citations since 2017
21 Research Items
75 Citations
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Introduction
I am currently a postdoctoral associate at Department of Civil, Environmental, and Architectural Engineering at University of Colorado Boulder. My research focus is on performance-based earthquake engineering. My primary interests include performance-based earthquake engineering (PBEE), resiliency and sustainability of infrastructures, and seismic risk management and mitigation.

Publications

Publications (24)
Data
This repository captures some of the images and damage conditions identified by the StEER VAST while scanning social media and other online sources after the Mw 5.6 Indonesia Earthquake, 2022 Nov 21. The examples included in these slides augment what is presented in the joint PVRR report for this event (DesignSafe Project PRJ-3781). None of the...
Technical Report
Full-text available
The first product of StEER’s Level 1 response to the M5.6 Indonesia Earthquake is this Preliminary Virtual Reconnaissance Report (PVRR), which is intended to: (1) provide details of the November 22 M 5.6 earthquake, (2) summarize the tectonic features of the event, (3) synthesize the recording ground motions and provide comparisons with design-leve...
Article
Full-text available
Reinforced concrete structures in corrosive environments undergo fast deterioration, leading to reduced service life. Hence, designers and concrete design standards try to improve concrete structure resistance in corrosive environments through several factors. One of these factors is to increase concrete cover thickness which can have some drawback...
Data
It is of great importance to be able to evaluate different structural systems not only based on their seismic performance but also considering their lifetime service costs. Many structural systems exist that can meet the engineering requirements for different performance levels; therefore, these systems shall be selected based on their economic cos...
Article
Full-text available
It is of great importance to be able to evaluate different structural systems not only based on their seismic performance but also considering their lifetime service costs. Many structural systems exist that can meet the engineering requirements for different performance levels; therefore, these systems shall be selected based on their economic cos...
Article
Utilizing fibers is an effective way to avoid the brittle behavior of the conventional concrete and can enhance its ductility. In particular, propylene fibers can improve concrete properties, including energy absorption, physical and mechanical properties, controlling shrinkage cracks. The increase of fiber density leads to an increase of the overl...
Article
The carbon dioxide present in the atmosphere is one of the main reasons for the corrosion of bridges, buildings, tunnels, and other reinforced concrete (RC) structures in most industrialized countries. With the growing use of fossil fuels in the world since the Industrial Revolution, the amount of carbon dioxide in urban and industrial areas of the...
Article
Advanced performance-based earthquake engineering (PBEE), as documented by FEMA P-58 provisions, can well serve as the bedrock for a building-specific risk assessment framework. The methodology embraces three main sequential steps: collapse assessment, irreparability assessment, and component-wise loss estimation. The consequence of collapse or irr...
Article
This study mainly aims to assess the performance of soil-structure systems designed by direct displacement-based method coupled with strong column-weak beam design concept through various system identification techniques under strong ground motions. To this end, various system identification methods are employed to evaluate the dynamic characterist...
Conference Paper
Damage to contents and nonstructural components is often the main driver of property losses against smaller earthquakes as evidenced by empirical evidence from past events. In the 2014 South Napa earthquake in California, for example, 56% of the affected buildings reported content damage. The primary modes of content damage include sliding, rocking...
Article
Steel corrosion is mainly at fault for the trend of deterioration among U.S. infrastructure—namely, bridges, pipelines, and wharves. Reinforced concrete (RC) is used as the primary construction material worldwide. Reinforcement corrosion can significantly impair mechanical properties of RC members, including shear and bending capacities. In the pas...
Conference Paper
FEMA P-58 is comprehensive performance-based earthquake engineering (PBEE) loss estimation framework which incorporates a three-module Monte Carlo simulation (MCS) procedure to assess the seismic performance of buildings. Although the framework is component-based—it accumulates damage from all building components to estimate the building-level loss...
Article
Utilization of fiber beam-column element has gained considerable attention in recent years due mainly to its ability to model distributed plasticity over the length of the element through a number of integration points. However, the relatively high sensitivity of the method to modeling parameters as well as material behavior models can pose a signi...
Article
Damages to buildings affected by a near-fault strong ground motion are largely attributed to the vertical component of the earthquake resulting in column failures, which could lead to disproportionate building catastrophic collapse in a progressive fashion. Recently, considerable interests are awakening to study effects of earthquake vertical compo...
Conference Paper
The probability that a building is sanctioned to demolition following an earthquake depends on several geotechnical, structural, strategic and financial decision variables. This paper explores the literature on post-earthquake reparability assessment of buildings focusing on structural characteristics and evaluates their approaches for four midrise...
Conference Paper
The seismic vulnerability functions for portfolio-level loss estimation are typically developed for general classes of buildings which may not be suitable to assess building-specific risks. Performance-based earthquake engineering (PBEE) provides the means to conduct building-specific seismic risk assessments. However, such assessments often rely o...
Article
Full-text available
Harsh environmental conditions along with aggressive chemical agents are known as one of the main reasons behind damages observed in reinforced concrete members. Corrosion of reinforcement worldwide is one of the leading causes of damages occurred in reinforced concrete over the lifespan. There are many critical energy and transportation infrastruc...
Conference Paper
Full-text available
The scarcity of detailed claims data for building contents (Coverage C) from historical earthquake events poses a significant challenge for property insurance catastrophe models to reliably estimate the losses associated to building contents. To develop content vulnerability functions empirically, one would need to have access to data from a multit...
Conference Paper
The concept of performance-based earthquake engineering has gained significant attentions in both the research and engineering communities. The development of a performance-based seismic loss assessment framework, known as the FEMA P-58 method, allows one to estimate the potential financial losses of a building using performance-based engineering m...
Article
This paper presents a new hypoelasticity model which was implemented in a nonlinear finite element formulation to analyze reinforced concrete (RC) structures. The model includes a new hypoelasticity constitutive relationship utilizing the rotation of material axis through successive iterations. The model can account for high nonlinearity of the str...
Article
A new approach for nonlinear finite element analysis of corroded reinforcements in RC structures is elaborated in the article. An algorithmic procedure for producing the tension-stiffening curve of RC elements taking into consideration most of effective parameters, e.g.: the rate of steel bar corrosion, bond-slip behavior, concrete cover and amount...
Article
Full-text available
The investigation of corrosion effects on the tensile behavior of reinforced concrete (RC) members is very important in region prone to high corrosion conditions. In this article, an experimental study concerning corrosion effects on tensile behavior of RC members is presented. For this purpose, a comprehensive experimental program including 58 cyl...

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